MacGyver skillz

I just performed a MacGyver feat of skill in the computer lab and all I got was a " it worked fine last week." Some Witch got her disk stuck in our " crappy machine" and I managed to retrieve it with a paperclip, scissor and fingernail (still attached). When I told her she couldn't use the disk any more because of the cracked case and mangled metal slide. All she could do was give me the carolina evil eye (my opinion only, please don't write me, defending this place) and say, "it worked fine last week, it must be your crappy machines that broke it" and stormed off, shoving the disk back in her jam-packed backback without the benefit of any protection for the disk. Yeah, our crappy machines did all the damage, not the way she treated the disk.

Would a simple thanks or sorry have hurt this woman?